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Vacuum Document Transport Apparatus

IP.com Disclosure Number: IPCOM000095528D
Original Publication Date: 1964-Feb-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 116K

Publishing Venue

IBM

Related People

Anderson, TH: AUTHOR

Abstract

Variable sized documents 10 are transported in a flat, non-obstructed condition by a series of laterally spaced endless perforated belts 15. Belts 15 are trained about pairs of longitudinally spaced pulleys 20. One pulley of each pair is spring-loaded to provide the proper tension.

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Vacuum Document Transport Apparatus

Variable sized documents 10 are transported in a flat, non-obstructed condition by a series of laterally spaced endless perforated belts 15. Belts 15 are trained about pairs of longitudinally spaced pulleys 20. One pulley of each pair is spring-loaded to provide the proper tension.

Documents 10 are registered so that one edge abuts against document registration block 25. Documents 10 adhere to belts 15 due to vacuum in ports or chambers 30 which are covered by belts 15. Ports 30 are laterally spaced from each other and are staggered in the longitudinal direction. This arrangement provides an increased force for holding the leading edge of a document to belt 15 as documents make a transition from port to port in the longitudinal direction.

Ports 30 are supplied with a vacuum from manifold 40. Vacuum is also supplied to ports 50 disposed in the area between belts 15. While ports 30 are supplied with vacuum from manifold 40, the vacuum decreases in ports 30 progressing away from registration block 25. This is accomplished by variable sized orifices 60 which are positioned within vacuum conductors 31 in the areas between belts 15.

Orifices 60 restrict the vacuum flow through conductors 31 to limit the loss of vacuum in the instances where the documents being transported are narrower than the width of the transport unit.

The vacuum supply originates from block 25. Hence, narrow documents experience approximately a full level vacuum...